Photographic slide tray



FIG. 1 is a top perspective view of a photographic slide tray showing my new design, the view opposite being a mirror image;

FIG. 2 is a bottom perspective view thereof, the view opposite being a mirror image; and

FIG. 3 is a top plan view thereof shown on a slightly enlarged scale. 

The ornamental design for a photographic slide tray, substantially as shown and described. 